computing-offload/generic_vdpa/qemu/hw-char-pl011-fix-baud-rate-calculation.patch
jiangdongxu 79c4324644 add generic_vdpa basecode
Change-Id: I2d302dda68298877c65c99147f5bf22186a59aac
2024-09-19 17:19:46 +08:00

40 lines
1.2 KiB
Diff

From 07639839666f134834b060a63d6b172812092366 Mon Sep 17 00:00:00 2001
From: cmss_dx <dingxiang@cmss.chinamobile.com>
Date: Mon, 28 Nov 2022 02:50:07 +0000
Subject: [PATCH 28/29] hw/char/pl011: fix baud rate calculation mainline
inclusion from mainline-v7.2.0-rc2 commit
31cb769c317e0623cbe2a3e8da437b6cd7ddef9b category: bugfix
--------------------------------
The PL011 TRM says that "UARTIBRD = 0 is invalid and UARTFBRD is ignored
when this is the case". But the code looks at FBRD for the invalid case.
Fix this.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Message-id: 1408f62a2e45665816527d4845ffde650957d5ab.1665051588.git.baruchs-c@neureality.ai
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: cmss_dx <dingxiang@cmss.chinamobile.com>
---
hw/char/pl011.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/char/pl011.c b/hw/char/pl011.c
index 8ca2a4ed68..b24ccfeac7 100644
--- a/hw/char/pl011.c
+++ b/hw/char/pl011.c
@@ -176,7 +176,7 @@ static unsigned int pl011_get_baudrate(const PL011State *s)
{
uint64_t clk;
- if (s->fbrd == 0) {
+ if (s->ibrd == 0) {
return 0;
}
--
2.27.0